The Thermocouple,immersion, cataloged under National Stock Number 6685-01-044-5044, is classified within Federal Supply Class 6685 (Pressure, Temperature, and Humidity Measuring and Controlling Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-044-5044 |
| Item Name | Thermocouple,immersion |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Status | ACTIVE |
| Mounting Thread Quantity | 18 PER INCH |
| Immersion Length | 2.500 INCHES NOMINAL IN |
| Mounting Facility Nominal Screw Thread Diameter | 0.250 INCHES IN |
| Unit Type | PROTECTIVE TUBE |
| Material | FIBERGLASS OUTER JACKET INSULATION/SHEATHING |
| Material | STEEL CORROSION RESISTING PROTECTIVE TUBE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 421-1011-020 | 5/9 Secondary reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| C4J23B5-A2 1/2-L25 | 3/9 Design control — primary reference Horizon Aerospace Llc Dba Magnetics Division |
| 421-1011-020 | 5/2 Secondary reference U.S. Government activity |
| C4J23B5 | 5/1 Secondary reference Horizon Aerospace Llc Dba Magnetics Division |
NSN 6685-01-044-5044 is a Thermocouple,immersion, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
Key specifications for 6685-01-044-5044: Mounting Thread Quantity: 18 PER INCH; Immersion Length: 2.500 INCHES NOMINAL IN; Mounting Facility Nominal Screw Thread Diameter: 0.250 INCHES IN; Unit Type: PROTECTIVE TUBE. 6 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.